Manuscript by Jeff Welty, May 2026
Reports and Publications
Sample Lab Report
The NC State Crime Lab has provided a mock lab report so that attorneys can see the format and contents of a lab report from their lab. Notes about the examination in this case are on pp. 24-26 of 29 in this report. No images are included in this sample, but should be requested in …
Forensic Expert Evidence Caselaw Database
In this database, the Wilson Center for Science and Justice at Duke Law has assembled reported decisions, chiefly by appellate courts, that discuss the admissibility of expert testimony regarding firearms, fingerprint, and shoeprint evidence. This database digests reported judicial rulings regarding that type of proffered expert testimony.
Mental Health Defenses—Diminished Capacity and Voluntary Intoxication: What Can the Expert Say?
Capacity to Proceed in Criminal Cases in North Carolina
This 2025 Administration of Justice Bulletin by John Rubin covers the three main phases of the capacity-to-proceed process: a mental health examination; a hearing to determine capacity; and proceedings after a determination of incapacity—that is, involuntary commitment and disposition of the criminal case.
Capacity to Proceed in Criminal Cases in North CarolinaRead More
NC Prosecutors’ Resource Online
Section 724.1 et seq contains guidance on admissibility of various forms of digital evidence.
Death Investigation: A Guide for the Scene Investigator
NIJ and its multidisciplinary partners have released an updated technical guide for conducting collaborative death scene investigations. The 2024 guide accounts for key changes in the field, including: This revised edition is a collaborative effort to update the content to ensure the best possible outcome for both death and criminal investigations today.
Death Investigation: A Guide for the Scene InvestigatorRead More
Report of the State Crime Lab Ombudsperson
June 2024 Report of Susan Brooks
Law Enforcement Use of Probabilistic Genotyping, Forensic DNA Phenotyping, and Forensic Investigative Genetic Genealogy Technologies
Proceedings of a 2024 National Academies of Sciences Workshop can be downloaded from this website.
Forensic DNA Interpretation and Human Factors: Improving the Practice Through a Systems Approach
Report published by NIST in 2024
False-Positive Rate for Suspected Drug-Related Deaths Following Full Autopsy
Review of case files and autopsies from WF Baptist Medical Center to determine whether significant disease processes or injuries that would supersede the results of toxicologic testing and external examination findings alone were being missed
False-Positive Rate for Suspected Drug-Related Deaths Following Full AutopsyRead More
Guilty Until Proven Innocent: Field Drug Tests and Wrongful Convictions
This report by the Penn Carey Law Quattrone Center provides the first-ever comprehensive analysis of presumptive drug field test usage across law enforcement agencies in the United States. Inexpensive and fast, these tests have become a tool of choice for law enforcement agencies. Unfortunately, they are notoriously imprecise and are known to produce “false positives,” …
Guilty Until Proven Innocent: Field Drug Tests and Wrongful ConvictionsRead More
Bitemark Analysis: A NIST Scientific Foundation Review
The National Institute of Standards and Technology (NIST) has reviewed the scientific foundations of bitemark analysis, a forensic technique in which marks on the skin of a biting victim are compared with the teeth of a suspected biter and found that the field is not supported by sufficient data. NIST has published its findings in …
Bitemark Analysis: A NIST Scientific Foundation ReviewRead More
Digital Investigation Techniques: A NIST Scientific Foundation Review
A Forensic Without the Science: Face Recognition in U.S. Criminal Investigations
NACDL Training and Resource Counsel Clare Garvie has authored a new report titled A Forensic Without the Science: Facial Recognition in U.S. Criminal Investigations. Designed as a resource for defense attorneys, advocates, and the public, it outlines how police face recognition searches are prone to error from under-performing algorithms, the lack of training and cognitive …
A Forensic Without the Science: Face Recognition in U.S. Criminal InvestigationsRead More
